/* ============================================================
   Ava van den Haak — Winter Field Survey
   Tokens
   ============================================================ */
:root {
  --ink: #070b12;
  --ink-2: #0b1119;
  --frost: #eaf1f7;
  --pearl: #c3cfdc;
  --pearl-dim: #8d9bab;
  --glacier: #9fc4e0;
  --berry: #7a2230;

  --font-display: "Bodoni Moda", "Didot", serif;
  --font-body: "Jost", "Avenir Next", sans-serif;
  --font-mono: "IBM Plex Mono", "SF Mono", monospace;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --pad-x: clamp(1.25rem, 4vw, 3rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background:
    radial-gradient(120% 80% at 74% 8%, rgba(120, 165, 205, 0.13), transparent 60%),
    radial-gradient(90% 60% at 20% 100%, rgba(38, 58, 82, 0.35), transparent 70%),
    linear-gradient(180deg, #04060a 0%, #0a1119 58%, #0e1722 100%);
  color: var(--frost);
  font-family: var(--font-body);
  font-weight: 300;
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(159, 196, 224, 0.25); color: var(--frost); }

a { color: inherit; text-decoration: none; cursor: pointer; }

:focus-visible {
  outline: 1px solid var(--glacier);
  outline-offset: 4px;
  border-radius: 2px;
}

/* ============================================================
   Scene canvas + veil
   ============================================================ */
.scene,
.scene canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100dvh;
  display: block;
}
.scene { z-index: 0; }

.scene canvas {
  opacity: 0;
  transition: opacity 2.2s ease 0.15s;
}
body.is-ready .scene canvas { opacity: 1; }

.veil {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    linear-gradient(to top, rgba(4, 7, 12, 0.62) 0%, rgba(4, 7, 12, 0.28) 22%, transparent 44%),
    radial-gradient(135% 110% at 50% 40%, transparent 55%, rgba(2, 4, 8, 0.55) 100%);
}
.veil::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============================================================
   Preloader
   ============================================================ */
.loader {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  place-items: center;
  background: var(--ink);
  transition: opacity 0.9s ease 0.2s, visibility 0s linear 1.2s;
}
body.is-ready .loader { opacity: 0; visibility: hidden; }

.loader-inner {
  display: grid;
  justify-items: center;
  gap: 1.1rem;
}
.loader-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--pearl-dim);
}
.loader-count {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 400;
  color: var(--frost);
  font-variant-numeric: tabular-nums;
}
.loader-bar {
  width: 148px;
  height: 1px;
  background: rgba(195, 207, 220, 0.18);
  overflow: hidden;
}
.loader-bar-fill {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--glacier);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

/* ============================================================
   Navigation
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: clamp(1.1rem, 2.6vw, 1.9rem) var(--pad-x);
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 1.2s ease 0.9s, transform 1.2s var(--ease-out) 0.9s;
}
body.is-ready .nav { opacity: 1; transform: none; }

.nav-mark { display: grid; gap: 0.2rem; }
.nav-mark-mono {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--frost);
}
.nav-mark-sub {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--pearl-dim);
}

.nav-links {
  display: flex;
  gap: clamp(1.2rem, 2.6vw, 2.4rem);
  align-items: center;
}
.nav-links a {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--pearl);
  padding: 0.45rem 0;
  position: relative;
  transition: color 0.25s ease;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0.15rem;
  width: 100%;
  height: 1px;
  background: var(--glacier);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s var(--ease-out);
}
.nav-links a:hover { color: var(--frost); }
.nav-links a:hover::after { transform: scaleX(1); transform-origin: left; }

.nav-contact {
  border: 1px solid rgba(195, 207, 220, 0.3);
  padding: 0.5rem 1.1rem !important;
  border-radius: 999px;
  transition: border-color 0.25s ease, background 0.25s ease, color 0.25s ease;
}
.nav-contact::after { display: none; }
.nav-contact:hover {
  border-color: rgba(234, 241, 247, 0.75);
  background: rgba(234, 241, 247, 0.06);
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  z-index: 5;
  min-height: 100dvh;
  display: flex;
  align-items: flex-end;
}

.hero-copy {
  padding: 0 var(--pad-x) clamp(4.5rem, 11vh, 7.5rem);
  max-width: 44rem;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--glacier);
  margin-bottom: clamp(1.1rem, 2.4vh, 1.7rem);
}
.eyebrow-rule {
  width: 2.4rem;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.7rem, 6.4vw, 5.9rem);
  line-height: 1.04;
  letter-spacing: 0.005em;
  color: var(--frost);
  margin-bottom: clamp(1.2rem, 2.8vh, 1.9rem);
  text-wrap: balance;
}
.hero-title em {
  font-style: italic;
  color: var(--glacier);
}

.line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.08em;
  margin-bottom: -0.08em;
}
.line-inner {
  display: inline-block;
  transform: translateY(115%);
  transition: transform 1.25s var(--ease-out);
}
body.is-ready .line:nth-child(1) .line-inner { transition-delay: 0.55s; transform: none; }
body.is-ready .line:nth-child(2) .line-inner { transition-delay: 0.68s; transform: none; }

.hero-sub {
  font-size: clamp(1rem, 1.25vw, 1.125rem);
  line-height: 1.65;
  color: var(--pearl);
  max-width: 33rem;
  margin-bottom: clamp(1.7rem, 3.6vh, 2.5rem);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  min-height: 44px;
}
.btn-primary {
  padding: 0 1.6rem;
  border: 1px solid rgba(234, 241, 247, 0.4);
  border-radius: 999px;
  color: var(--frost);
  background: rgba(234, 241, 247, 0.04);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: background 0.35s ease, color 0.35s ease, border-color 0.35s ease;
}
.btn-primary svg { transition: transform 0.35s var(--ease-out); }
.btn-primary:hover {
  background: var(--frost);
  color: var(--ink);
  border-color: var(--frost);
}
.btn-primary:hover svg { transform: translateX(3px); }

.btn-ghost {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.24em;
  color: var(--pearl-dim);
  border-bottom: 1px solid rgba(141, 155, 171, 0.35);
  padding: 0.35rem 0;
  min-height: 0;
  transition: color 0.25s ease, border-color 0.25s ease;
}
.btn-ghost:hover { color: var(--frost); border-color: var(--frost); }

/* ============================================================
   HUD readouts
   ============================================================ */
.hud {
  position: fixed;
  z-index: 6;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--pearl-dim);
  display: grid;
  gap: 0.45rem;
}
.hud-right {
  right: var(--pad-x);
  bottom: clamp(4.5rem, 11vh, 7.5rem);
  text-align: right;
  justify-items: end;
}
.hud-status {
  top: clamp(4.6rem, 9vh, 6.4rem);
  right: var(--pad-x);
  grid-auto-flow: column;
  align-items: center;
  gap: 0.6rem;
  color: var(--pearl);
}
.status-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--glacier);
  box-shadow: 0 0 8px 1px rgba(159, 196, 224, 0.8);
  animation: pulse 3s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ============================================================
   Scroll hint
   ============================================================ */
.scroll-hint {
  position: fixed;
  z-index: 6;
  left: 50%;
  bottom: 1.6rem;
  transform: translateX(-50%);
  display: grid;
  justify-items: center;
  gap: 0.55rem;
}
.scroll-line {
  width: 1px;
  height: 2.6rem;
  background: linear-gradient(to bottom, transparent, var(--pearl-dim));
  overflow: hidden;
  position: relative;
}
.scroll-line::after {
  content: "";
  position: absolute;
  left: 0;
  top: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, transparent, var(--frost));
  animation: scrollDrip 2.6s var(--ease-out) infinite;
}
@keyframes scrollDrip {
  0% { top: -100%; }
  60%, 100% { top: 100%; }
}
.scroll-word {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--pearl-dim);
}

/* ============================================================
   Reveal choreography
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 1.1s ease, transform 1.1s var(--ease-out);
}
body.is-ready .reveal { opacity: 1; transform: none; }
body.is-ready .hero-eyebrow { transition-delay: 0.45s; }
body.is-ready .hero-sub { transition-delay: 0.85s; }
body.is-ready .hero-actions { transition-delay: 1s; }
body.is-ready .hud-right { transition-delay: 1.5s; }
body.is-ready .hud-status { transition-delay: 1.6s; }
body.is-ready .scroll-hint { transition-delay: 1.9s; }

/* ============================================================
   Scroll dimmer — scene fades to ink under the content
   ============================================================ */
.dimmer {
  position: fixed;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background: #05080d;
  opacity: 0;
}

/* ============================================================
   Content sections
   ============================================================ */
.sec {
  position: relative;
  z-index: 5;
  max-width: 72rem;
  margin: 0 auto;
  padding: clamp(6rem, 14vh, 10rem) var(--pad-x);
}

.sec-head { margin-bottom: clamp(3rem, 7vh, 5rem); }

.sec-eyebrow {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--glacier);
  margin-bottom: 1.1rem;
}
.sec-num {
  color: var(--pearl-dim);
  letter-spacing: 0.14em;
}
.sec-num::after {
  content: " /";
  color: rgba(141, 155, 171, 0.4);
}

.sec-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.1;
  color: var(--frost);
  text-wrap: balance;
}
.sec-title em { font-style: italic; color: var(--glacier); }

.sec-sub {
  margin-top: 1rem;
  font-size: 1rem;
  color: var(--pearl-dim);
  max-width: 34rem;
}

/* ---------------- expeditions ---------------- */
.exp {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: 2rem;
  padding: clamp(2.4rem, 5vh, 3.6rem) 0;
  border-top: 1px solid rgba(195, 207, 220, 0.14);
}

.exp-rail {
  display: grid;
  align-content: start;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
}
.exp-num { color: var(--glacier); }
.exp-coord { color: var(--pearl-dim); font-size: 0.625rem; }

.exp-desig {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--pearl-dim);
  margin-bottom: 0.9rem;
}
.exp-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.7rem, 2.8vw, 2.5rem);
  line-height: 1.12;
  color: var(--frost);
  margin-bottom: 0.4rem;
}
.exp-role {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  color: var(--glacier);
  margin-bottom: 1.2rem;
}
.exp-narr {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--pearl);
  max-width: 42rem;
  margin-bottom: 1.8rem;
}

.exp-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.2rem 1.6rem;
  max-width: 42rem;
}
.exp-stats li { display: grid; gap: 0.35rem; }
.exp-stats strong {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.35rem, 1.9vw, 1.8rem);
  color: var(--frost);
  font-variant-numeric: tabular-nums;
}
.exp-stats span {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--pearl-dim);
  line-height: 1.5;
}

/* ---------------- field notes ---------------- */
.notes { display: grid; }
.note {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: 0.4rem 2rem;
  padding: 1.6rem 0;
  border-top: 1px solid rgba(195, 207, 220, 0.12);
}
.note-num {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.22em;
  color: var(--pearl-dim);
  padding-top: 0.45rem;
}
.note-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-style: italic;
  font-size: clamp(1.25rem, 2vw, 1.7rem);
  color: var(--frost);
  grid-column: 2;
}
.note-line {
  grid-column: 2;
  font-size: 0.9375rem;
  color: var(--pearl-dim);
  max-width: 38rem;
}

/* ---------------- about ---------------- */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: start;
}
.about-bio p {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--pearl);
  margin-bottom: 1.4rem;
  max-width: 38rem;
}
.bio-lede {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.4rem, 2.4vw, 2rem) !important;
  line-height: 1.35 !important;
  color: var(--frost) !important;
  margin-bottom: 1.8rem !important;
}

.about-manifest {
  border-left: 1px solid rgba(195, 207, 220, 0.14);
  padding-left: clamp(1.4rem, 2.5vw, 2.4rem);
  display: grid;
  gap: 0.9rem;
  align-content: start;
}
.manifest-head {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--glacier);
  margin-top: 0.8rem;
}
.manifest-head:first-child { margin-top: 0; }
.manifest-list { display: grid; gap: 0.55rem; }
.manifest-list li {
  font-size: 0.9375rem;
  color: var(--pearl);
  padding-left: 1rem;
  position: relative;
}
.manifest-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--pearl-dim);
  font-size: 0.7em;
  top: 0.35em;
}
.manifest-way {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--pearl);
}

/* ---------------- contact ---------------- */
.sec-contact {
  min-height: 92dvh;
  display: grid;
  place-items: center;
  text-align: center;
  max-width: none;
}
.contact-inner { display: grid; justify-items: center; gap: 1.6rem; }
.contact-inner .sec-eyebrow { justify-content: center; margin-bottom: 0; }
.contact-title { font-size: clamp(2.3rem, 5vw, 4.4rem); }
.contact-sub {
  font-size: 1rem;
  color: var(--pearl-dim);
  margin-top: -0.4rem;
}

/* ---------------- contact form ---------------- */
.contact-form {
  width: min(100%, 34rem);
  display: grid;
  gap: 1.5rem;
  justify-items: start;
  text-align: left;
  margin-top: 0.8rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  width: 100%;
}
.form-field { display: grid; gap: 0.45rem; width: 100%; }
.form-field label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--glacier);
}
.form-field input,
.form-field textarea {
  width: 100%;
  min-height: 44px;
  padding: 0.55rem 0.05rem;
  background: transparent;
  border: 0;
  border-bottom: 1px solid rgba(195, 207, 220, 0.3);
  border-radius: 0;
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1.0625rem;
  color: var(--frost);
  transition: border-color 0.3s ease;
}
.form-field textarea { resize: vertical; min-height: 7.5rem; }
.form-field input:focus-visible,
.form-field textarea:focus-visible {
  outline: none;
  border-bottom-color: var(--glacier);
}
.form-field input.is-invalid,
.form-field textarea.is-invalid { border-bottom-color: rgba(226, 169, 176, 0.75); }
.field-error {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  color: #e2a9b0;
  min-height: 1em;
}
.form-send { cursor: pointer; }
.form-send[disabled] { opacity: 0.45; cursor: default; }
.form-status {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--pearl);
  line-height: 1.7;
  min-height: 1em;
}
.form-status a { color: var(--glacier); text-decoration: underline; }
.contact-form.is-sent .form-row,
.contact-form.is-sent .form-field,
.contact-form.is-sent .form-send { display: none; }
.contact-form.is-sent .form-status {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  letter-spacing: 0.01em;
  color: var(--frost);
  text-align: center;
  justify-self: center;
}
.contact-hud {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--pearl-dim);
  margin-top: 1.6rem;
}

/* ---------------- footer ---------------- */
.footer {
  position: relative;
  z-index: 5;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  align-items: baseline;
  max-width: 72rem;
  margin: 0 auto;
  padding: 2rem var(--pad-x) 2.4rem;
  border-top: 1px solid rgba(195, 207, 220, 0.1);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--pearl-dim);
}
.footer-mark { color: var(--pearl); letter-spacing: 0.24em; }

/* ---------------- scroll reveals ---------------- */
.sr {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 1s ease, transform 1s var(--ease-out);
}
.sr.in-view { opacity: 1; transform: none; }

/* fixed hero instruments retire once the reader leaves the hero */
.hud,
.scroll-hint {
  transition: opacity 0.5s ease, transform 0.5s ease;
}
body.is-away .hud,
body.is-away .scroll-hint {
  opacity: 0 !important;
  pointer-events: none;
}

/* ---------------- nav states ---------------- */
.nav::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(5, 8, 13, 0.55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.nav.is-scrolled::before { opacity: 1; }
.nav > * { position: relative; }
.nav-links a.is-active { color: var(--frost); }
.nav-links a.is-active::after { transform: scaleX(1); }

/* ---------------- responsive ---------------- */
@media (max-width: 900px) {
  .form-row { grid-template-columns: 1fr; }
  .exp,
  .note { grid-template-columns: 1fr; gap: 1rem; }
  .exp-rail { grid-auto-flow: column; justify-content: start; gap: 1.4rem; }
  .exp-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .note-title, .note-line { grid-column: 1; }
  .note-num { padding-top: 0; }
  .about-grid { grid-template-columns: 1fr; }
  .about-manifest {
    border-left: 0;
    border-top: 1px solid rgba(195, 207, 220, 0.14);
    padding-left: 0;
    padding-top: 2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sr {
    transition: opacity 0.5s ease;
    transform: none;
  }
}

/* ============================================================
   Noscript
   ============================================================ */
.noscript {
  position: relative;
  z-index: 20;
  padding: 2rem var(--pad-x);
  font-size: 1rem;
  color: var(--pearl);
}
.noscript a { text-decoration: underline; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  /* portrait shows more lit snowfield behind the copy — deepen the scrim */
  .veil {
    background:
      linear-gradient(to top, rgba(4, 7, 12, 0.78) 0%, rgba(4, 7, 12, 0.5) 26%, rgba(4, 7, 12, 0.18) 46%, transparent 60%),
      radial-gradient(135% 110% at 50% 40%, transparent 55%, rgba(2, 4, 8, 0.55) 100%);
  }
  .nav-links a:not(.nav-contact) { display: none; }
  .hud-right { display: none; }
  .hud-status {
    top: auto;
    bottom: 1.5rem;
    right: var(--pad-x);
  }
  .scroll-hint { left: var(--pad-x); transform: none; justify-items: start; }
  .hero-copy { padding-bottom: clamp(5rem, 13vh, 7rem); }
}

@media (max-width: 520px) {
  .hero-title { font-size: clamp(2.4rem, 11.5vw, 3.2rem); }
  .hero-sub { font-size: 1rem; }
  .hero-actions { gap: 1.1rem; }
}

/* short landscape windows: keep the copy clear of the nav */
@media (max-height: 840px) and (min-width: 900px) {
  .hero-title { font-size: clamp(2.4rem, 5vw, 4.4rem); }
  .hero-sub { font-size: 1rem; margin-bottom: 1.5rem; }
  .hero-eyebrow { margin-bottom: 1rem; }
  .hero-copy { padding-bottom: clamp(3.2rem, 9vh, 5.5rem); }
}

/* very short viewports (split panes, small landscape phones):
   scale the whole copy block down so it never climbs into the nav */
@media (max-height: 560px) {
  .nav-mark-sub { display: none; }
  .hero-title { font-size: clamp(1.7rem, 7.5vh, 2.9rem); }
  .hero-sub {
    font-size: 0.9375rem;
    line-height: 1.5;
    margin-bottom: 1.1rem;
    max-width: 30rem;
  }
  .hero-eyebrow { margin-bottom: 0.7rem; }
  .hero-copy { padding-bottom: 2.4rem; }
  .scroll-hint,
  .hud-right { display: none; }
  .hud-status { top: auto; bottom: 1.2rem; right: var(--pad-x); }
}

/* ============================================================
   Reduced motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .scene canvas { transition-duration: 0.6s; }
  .line-inner,
  .reveal {
    transition: opacity 0.6s ease !important;
    transform: none !important;
  }
  .status-dot,
  .scroll-line::after { animation: none; }
  .loader { transition-duration: 0.4s; }
}